Window-shade adjuster



Nov. 11 1924. 1,515,372 L. c. SMITH WINDOW SHADE ADJUSTER Filed on. 12, 1922 o v I J5 F JY 1- a:15

r 6-- Pz "w "1" 5 INVENTOR.

\ ATTORNEY.

Patented Nov. 11, 1924.

OFF ICE.

LEWIS CASS SMITH, OF DE WITT, ARKANSAS.

WINDOW-SHADE ADJUSTER.

Application filed October 12, 1922.

To all whom it may concern:

Be it known that I, LEWIS CASS SMITH, a citizen of the United States, residing at De .Vitt, in the county of Arkansas and State of Arkansas, have invented certain new and useful Improvements in l/Vindow-Shade Adjusters, of which the following is a specification.

This invention relates to curtain roller operating devices, and has for one of its objects to simplify the construction and increase the efficiency and utility of devices of this character.

Another object of the invention is to provide a device of this character having opcrative means for locking the shade in adjusted position.

With these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claim, and in the drawings illustrative of the preferred embodiment of the invention:-

Fig. l is an elevation of a conventional window including the casing and a curtain roller and curtain shade with the improvement applied.

Fig. 2 is a side elevation, enlarged, of the same, partly in section.

Fig. 3 is a front elevation, enlarged, of the lower bracket together with the chain pulley and locking disk in position therein.

Fig. 4 is a detached perspective view of the lower bracket.

The improved device may be applied to any size of window or curtain roller, but for the purpose of illustration is shown applied to a conventional window in which 10 represents the casing, 11 a part of the lower sash, 12 the upper bracket in which the curlain roller 14 is mounted by its journals 15.

The shade or curtain is represented at 16 and attached at one end to the roller in the usual manner, and mounted upon one of the journals 15 of theroller 14 is a small chain pulley 17 Attached to the casing 10 as by screws or the like at a point convenient to the hand of a person standing on the floor, is a lower bracket comprising a rear wall 18 and spaced outwardly directed sides 19.

Supported in the sides 19 of the bracket is a shaft or pin 20, and mounted upon the Serial No. 594,048.

pin is a chain pulley 21 in alinement with the chain 22, or the like.

Rotative with the pulley 21 is a notched disk 23, as shown in F i e 3.

Attached at 24 to the rear wall 18 of the bracket is a resilient pawl device 25 having an upwardly directed loop 26 to frictionally engage the teeth of the disk 23, as indicated in Figure -2, and extended outwardly and terminating in a finger grip portion 27.

The teeth of the disk 23 are relatively deep so that the portion 26 of the yieldable pawl device will positively lock the chain 22 and the roller 14 in position.

When the shade is to be raised or lowered the operator forces the pawl device 25 downwardly with the fingers of one hand to release the portion 26 from engagement with. the teeth of the disk 23, and then moves the chain 22- by the other hand upwardly or downwardly to impart rotary motion to the roller to raise or lower the shade as desired, and when the desired position is reached, the pawl device is released to automatically lock the shade in the adjusted position.

The improved device is of simple construction, that can be constructed of any suitable material of any desired size and adapted to shade rollers of various sizes and lengths.

The preferred embodiment of the invention is disclosed in the drawings and set forth in the specification, but it will be understood that modifications within the scope of the claimed invention may be made in the construction without departing from the principle of the invention or sacrificing any of its advantages.

lVhat is claimed as new is:

A device of the class described comprising a bracket including spaced sides and a rear connecting portion, a shaft extending through said spaced sides, a chain pulley and a toothed wheel connected to rotate together relative to said shaft and between the spaced sides of the bracket, and a strip of resilient material bent at right angles intermediate the ends with one portion attached to the rear portion of the bracket and the other portion formed into a loop to yieldably engage the teeth of the wheel and extended in advance of the bracket to form a finger grip.

In testimony whereof, I afiix my si nature.

LEWIS oAss'sMITH. 

